Abstract
Toxicant properties of nanoparticles are influenced by their dispersiveness, catalytic activity, aggregation and dissolution properties, which are determined by acid-base properties of the surface. This paper provides the experimental results of the research of surface acid-base characteristics for pH = 2.0...9.0, and takes into account their contribution to aggregative activity of Zn and ZnO nanoparticles in suspensions with pH = 4.0, 6.0, and 8.0. The maximum value of adsorption capacity can be expected in acid medium for Zn nanoparticles, and in base medium for ZnO nanoparticles. This study showed that when the value of pH is different from 6, suspension aggregative stability was strengthened or weakened for Zn and ZnO nanoparticles, respectively. The conclusion concerning the contribution of nanoparticles adsorption activity which is changed by surface acid-base characteristics to aggregative stability of particles of different compounds has been made.
| Original language | English |
|---|---|
| Title of host publication | Nanomaterials for Structural, Functional and Biomedical Applications |
| Pages | 263-270 |
| Number of pages | 8 |
| DOIs | |
| Publication status | Published - 15 Jan 2014 |
| Event | Russian-German Forum on Nanotechnology - Tomsk, Russian Federation Duration: 21 May 2013 → 24 May 2013 |
Publication series
| Name | Advanced Materials Research |
|---|---|
| Volume | 872 |
| ISSN (Print) | 1022-6680 |
Other
| Other | Russian-German Forum on Nanotechnology |
|---|---|
| Country | Russian Federation |
| City | Tomsk |
| Period | 21.5.13 → 24.5.13 |
Fingerprint
Keywords
- Nanoparticles aggregation
- Surface acid-base characteristics
- Suspensions
- Toxicity of nanoparticles
ASJC Scopus subject areas
- Engineering(all)
Cite this
Surface acid-base characteristics and their contribution to aggregative stability of nanoparticles. / Yunda, Elena Nikolaevna; Godymchuk, Anna; Kosova, Nata Lia; Kuznetsov, Denis; Senatova, Svetlana.
Nanomaterials for Structural, Functional and Biomedical Applications. 2014. p. 263-270 (Advanced Materials Research; Vol. 872).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Surface acid-base characteristics and their contribution to aggregative stability of nanoparticles
AU - Yunda, Elena Nikolaevna
AU - Godymchuk, Anna
AU - Kosova, Nata Lia
AU - Kuznetsov, Denis
AU - Senatova, Svetlana
PY - 2014/1/15
Y1 - 2014/1/15
N2 - Toxicant properties of nanoparticles are influenced by their dispersiveness, catalytic activity, aggregation and dissolution properties, which are determined by acid-base properties of the surface. This paper provides the experimental results of the research of surface acid-base characteristics for pH = 2.0...9.0, and takes into account their contribution to aggregative activity of Zn and ZnO nanoparticles in suspensions with pH = 4.0, 6.0, and 8.0. The maximum value of adsorption capacity can be expected in acid medium for Zn nanoparticles, and in base medium for ZnO nanoparticles. This study showed that when the value of pH is different from 6, suspension aggregative stability was strengthened or weakened for Zn and ZnO nanoparticles, respectively. The conclusion concerning the contribution of nanoparticles adsorption activity which is changed by surface acid-base characteristics to aggregative stability of particles of different compounds has been made.
AB - Toxicant properties of nanoparticles are influenced by their dispersiveness, catalytic activity, aggregation and dissolution properties, which are determined by acid-base properties of the surface. This paper provides the experimental results of the research of surface acid-base characteristics for pH = 2.0...9.0, and takes into account their contribution to aggregative activity of Zn and ZnO nanoparticles in suspensions with pH = 4.0, 6.0, and 8.0. The maximum value of adsorption capacity can be expected in acid medium for Zn nanoparticles, and in base medium for ZnO nanoparticles. This study showed that when the value of pH is different from 6, suspension aggregative stability was strengthened or weakened for Zn and ZnO nanoparticles, respectively. The conclusion concerning the contribution of nanoparticles adsorption activity which is changed by surface acid-base characteristics to aggregative stability of particles of different compounds has been made.
KW - Nanoparticles aggregation
KW - Surface acid-base characteristics
KW - Suspensions
KW - Toxicity of nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=84891900777&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84891900777&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.872.263
DO - 10.4028/www.scientific.net/AMR.872.263
M3 - Conference contribution
AN - SCOPUS:84891900777
SN - 9783037859667
T3 - Advanced Materials Research
SP - 263
EP - 270
BT - Nanomaterials for Structural, Functional and Biomedical Applications
ER -